Andrew E. Lan, MD
NPI 1003856964ActiveIndividual· Internal Medicine· Yonkers, NY
Internal Medicine (MD) in Yonkers, New York, trained at Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc) (class of 2001). Their prescriptions cost Medicare Part D more than their services did: $838,160 for 9,315 claims, against $46,365 paid for services in 2024.
Overview
| NPI | 1003856964 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 8, 2006 |
| Last updated in NPPES | May 20, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 25MA07724400 | NJ |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 254 |
|---|---|
| Services billed | 646 across 11 procedure codes |
| Paid by Medicare | $46,365 |
Part D prescriptions in 2024
| Prescriptions (claims) | 9,315 · 22,493 30-day fills |
|---|---|
| Patients | 1,189 |
| Total drug cost | $838,160 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc) |
|---|---|
| Graduation year | 2001 |
| Medicare specialty | Internal Medicine |
Medical group
- Montefiore Medical CenterBronx, NY · 2,820 clinicians
Hospital affiliation
- Montefiore Medical CenterBronx, NY
Other facilities
- Americare Certified Special Services, Inc ChhaHome health agency · Brooklyn, NY
- Extended Home CareHome health agency · Brooklyn, NY
- Montefiore Med Ctr Home Care ChhaHome health agency · Bronx, NY
- Revival Home Health CareHome health agency · Staten Island, NY
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 129 internal medicine physicians in Yonkers · All internal medicine physicians in New York